Touchpad on the Dell Latitude e6520

[Alexander Reichle-Schmehl <alexander@schmehl.info>]

Hi!

I recently got a Dell Latitude e6520 notebook, and while Debian wheezy
works in general, I have some trouble with the touchpad. It works
(inkludign tapping), but scroling doesn't.  Reading
http://wiki.debian.org/SynapticsTouchpad didn't helped me solve my
problems.

Looking and lsusb I see the following, but I'm not sure, which of them
is my touchpad:

$ lsusb|egrep -v "[hH]ub|[Bb]luetooth"
Bus 001 Device 004: ID 1bcf:2802 Sunplus Innovation Technology Inc. 
Bus 002 Device 007: ID 413c:818d Dell Computer Corp. 
Bus 002 Device 004: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor


/proc/bus/input/devices says the following:

I: Bus=0011 Vendor=0002 Product=0001 Version=0000
N: Name="PS/2 Generic Mouse"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input7
U: Uniq=
H: Handlers=mouse0 event7 
B: PROP=0
B: EV=7
B: KEY=70000 0 0 0 0
B: REL=3


And "grep -i mouse /var/log/Xorg.0.log" results in the following:

[    45.318] (==) intel(0): Silken mouse enabled
[    49.190] (II) config/udev: Adding input device PS/2 Generic Mouse (/dev/input/event7)
[    49.190] (**) PS/2 Generic Mouse: Applying InputClass "evdev pointer catchall"
[    49.190] (II) Using input driver 'evdev' for 'PS/2 Generic Mouse'
[    49.190] (**) PS/2 Generic Mouse: always reports core events
[    49.190] (**) PS/2 Generic Mouse: Device: "/dev/input/event7"
[    49.190] (--) PS/2 Generic Mouse: Found 3 mouse buttons
[    49.190] (--) PS/2 Generic Mouse: Found relative axes
[    49.190] (--) PS/2 Generic Mouse: Found x and y relative axes
[    49.190] (II) PS/2 Generic Mouse: Configuring as mouse
[    49.190] (**) PS/2 Generic Mouse: YAxisMapping: buttons 4 and 5
[    49.190] (**) PS/2 Generic Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[    49.190] (II) XINPUT: Adding extended input device "PS/2 Generic Mouse" (type: MOUSE)
[    49.190] (II) PS/2 Generic Mouse: initialized for relative axes.
[    49.190] (**) PS/2 Generic Mouse: (accel) keeping acceleration scheme 1
[    49.190] (**) PS/2 Generic Mouse: (accel) acceleration profile 0
[    49.190] (**) PS/2 Generic Mouse: (accel) acceleration factor: 2.000
[    49.190] (**) PS/2 Generic Mouse: (accel) acceleration threshold: 4
[    49.190] (II) config/udev: Adding input device PS/2 Generic Mouse (/dev/input/mouse0)


So any Ideas, what I can do do activate scrolling (on the right edge of
the touchpad)?


Best Regards,
  Alexander